Gaseous Fire Suppression - Theory

Theory

There are four means used by the agents to extinguish a fire. They act on the "fire tetrahedron":

  • Reduction or isolation of fuel
No agents currently use this as the primary means of fire suppression.
  • Reduction of heat
Representative agents: HFC-227ea (MH227, FM-200), Novec 1230, HFC-125 (ECARO-25), FS 49 C2 .
  • Reduction or isolation of oxygen
Representative agents: Argonite / IG-55 (ProInert), CO2 carbon dioxide, IG-541 Inergen, and IG-100 (NN100).
  • Inhibiting the chain reaction of the above components
Representative agents: FE-13, FE-227, FE-25, MH227, FM-200, Halons, Halon 1301, Freon 13T1, NAF P-IV, NAF S-III, and Triodide (Trifluoroiodomethane).

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